Pinnately compound with 9-19 toothed leaflets. Leaves arranged in a whorl.
Erect, rhizomatous, evergreen, stiff-branched shrub, to 60 cm tall; leaves like holly, clustered, long alternate, with 9-19 leaflets oblong to egg-shaped, with several prominent spiny teeth.
The Dull Oregon Grape is in the family Berberidaceae. Plant grows about 1-2 ft in height. Leaves are compound with leaflets which are oppositely arranged. Leaflets are pointed, severely toothed and has three mid veins. Leaflets are leathery and smooth to the touch.
This is an evergreen shrub that grows about 1-2 feet high in the under story of forests. Has dark green alternating leathery leaves, that are shiny on the top and have many teeth on the edge.
Found just off of Olympia Woodland Trail, 5 minute walk from Wheeler Ave access point.
I-5 static is loud and incessant.
Weather is clearing up: clouds burning off and sun emerging...none reaches my subject. 60F or more.
The shrub appears young. Upper stem not yet hardened and remains light green, only two off-branches from original stem. Leaves are stiff and somewhat glossy. Veins clearly visible from underside of leaf and fan out from the base in a geometric sort of pattern. Although the leaves are serrated, each point is flexible and not bothersome to touch. No discernible odor to the shrub. The lower stem is a mix of dark/light browns and grays, almost scaly to the touch, much thicker and more rigid than upper stem. A neighboring Mahonia nervosa is plagued by something that has eaten away at the edges of its leaves.
Leathery leaves arranged pinnately compound spiny leaflets
Mahonia nervosa (Dwarf Oregon-Grape) - notice this has about 17 leaflets.
I always have a challenge with this because it looks similar to Mahonia aquifolium (Shining Oregon-Grape) which has only 5–9 leaflets
Elevation 1050 meters (3450 feet)
Mount Townsend ( Trail 839)
Olympic National Forest, Hood Canal Ranger District
Mahonia nervosa, commonly known as dwarf Oregon-grape, Cascade Oregon-grape, or dull Oregon-grape, is a flowering plant native to the northwest coast of North America from southern British Columbia south to central California, with an isolated population inland in northern Idaho. It is especially common in second growth, Douglas-fir or western redcedar forests, making use of those pools of sunlight that intermittently reach the ground. Some authors place the genus Mahonia within the genus Berberis.